Profile: Zircar Zirconia, Inc. is a manufacturer of yttria stabilized zirconia fibers, cloths and felts. We distribute advanced high temperature materials for the defense, aerospace and thermal processing industries. ZYFB boards, discs and cylinders are rigid, refractory structures composed of yttria-stabilized zirconia fibers that do not undergo the usual phase transitions associated with pure zirconia. Type ZYFB is ideally suited for thermal insulation applications under conditions of ultra-high temperatures and in a variety of severe environments. ZYFB is fired at a high temperature to impart dimensional stability up to 1650°C and can be used at higher temperatures where some additional sintering can be tolerated. It has good hot strength up to 1400°C and can be used as a self supporting setter for loads equal to twice its own weight up to this temperature. Zirconia felt is a ceramic textile formed by the process for replicating organic structures in inorganic materials. The zirconia felt structure is a needled felt which retains its fibrous nature to 2480°C. The stabilized zirconia composition permits the advantages of fibrous insulations to be extended into temperature regions well above the melting temperatures of siliceous and alumina insulation materials.